Water deactivator and method of making same



FRANK N. SPELLER, OF PITTSBURGH, I'ENNSYLVANIA.

WAT ER DEACTIVATOR AND METHOD OF MAKING SAME.

No Drawing.

T0 at whom it may concern:

Be itknown that I, FRANK N. SPELLER, a citizen of the United States, and resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Water Deactivator and Method of Making Same, .of which the following is a specification.

Th1s invention relates to a water deactivator and method of making same and more particularly to a water deactivator including ferrous hydroxide, and has for its principal object the production of ferrous hydroxide in a commercial form, capable of being handled without serious oxidation in the atmosphere.

Heretofore it has not been possible to manufacture ferrous hydroxide in a commercial form, since it is slightly soluble in water and oxidizes rapidly when exposed to the atmosphere. Ferrous hydroxide has been manufactured under water and thus it has been kept, practicallly free from such oxidation, but due to the bulk and weight of the package necessary to ship the product while it is underwater this practice has not become widely used and is impracticable when large quantities are used as is necessary to deactivate large amounts of water. I

The present invention hasovercome the above disadvantages and provides a prodnot including ferrous hydroxide for deactivating water in such form that it will not be subject to serious oxidation in the atmosphere.

In carrying out my invention I produce ferrous hydroxide from ferrous sulphate,

and a solublesalt, Silch as hydrate of lime,

by intimately mixing the ferrous sulphate and salt while in a granulated form, and-- then pressing the sofformed mixture [into briquettes at a pressure of not less than two thousand poundsper squareinch, said pressure being sufiicient to cause the formation of ferrous hydroxide and calcium sulphate, and resulting in the formation of riquettes which are ri id and strong enough to be handled, an which are'subject to a minimum amount of oxidation when exposed to the atmosphere.

In order to further preventoxidation by contact with the atmosphere,-the formed briquettes preferably are cut up into small pieces or chunks and the so-formed pieces are dipped into silicate of soda solution or adapted to absorb Application filed March 28, 1922. Serial No. 547,548.

other similar preservative coating adapted to form an airprooof covering over the pieces of briquette to prevent oxidation.

The briquettes, formed as above described, either as a whole or cut into pieces and' coated with a preservative coating, form an excellent deactivator for water, which is the active oxygen therefrom.

. I claim 1. The method of forming a ferrous hydroxide composition which consists in mixing granular ferrous sulphate with a granular alkaline salt, and applying suflicient pressure thereto to form ferrous hydroxide.

2. The method of forming a ferrous hydroxide composition, which consists in mixing granular ferrous sulphate with a granvular alkaline salt, and applying pressure thereto to form briquettes, said pressure being suflicient to change said ferrous sulphate to ferrous hydroxide.

3. The method of forming a ferrous hydroxide composition, which consists in mix- -1ng granular ferrous sulphate with granular hydrate of lime, and a 1 in ressure thereto to form briquette g aid gressure being suificient to change said ferrous sulphate and said' hydroxide of lime to fer rous hydrate and. calcium sulphate.

4. The method of making a water deactivator, which consists in mixing ferrous sulphate with a soluble salt, and applying sufficient pressure thereto to form ferroushydroxide.

5. A composition, comprising ferrous hydroxide in combination with a soluble salt.

6. A briquette, composed of ferrous hydroxide in combination withla soluble salt.

7. A. composition, comprising ferrous hydroxide in combination with a soluble salt.

9. As anarticle of manufacturata rigid v body composed of ferrous hydroxide in com I bination with calcium sulphate, and a coat-- ing of silicate of soda.

10. A briquette, containing ferrous liy -j 7 droxide and a binding terial being slightly soluble in Water.

In testimony whereof signed my name.

FRANK N. SPELLER.

I have marina? material, said 'm'af- 

